KERNEL查不多就是你说的那个意思。 ROOT FILE SYSTEM没听说过,是不是ROOT DIRECTORY?从WIKI抄了下面一段 Unix-like operating systems create a virtual file system, which makes all the files on all the devices appear to exist in a single hierarchy. This means, in those systems, there is one root directory, and every file existing on the system is located under it somewhere. Unix-like systems can use a RAM disk or network shared resource as its root directory.